Shell carton



Aug. 3, 1943. o. EGGEBRECHT 2,325,755

SHELL CARTON Filed oler. 19, 1942 sragtspsneet 2 Patented Aug. 3, im

SHELL CARTON Oscar Eggebrecht, Wausau, Wis., assignor to Marathon Paper Mills Company, Rothschild,

Wis., a corporation of Wisconsin Application October 19, 1942, Serial No. 462,601

2 Claims.

This invention relates to a carton formed from a single blank adapted for packaging articles such as cartridges and the like. t

The packaging and shipping of cartridges and also various fragile articles has presented for a long time very serious problems in preventing accidents occurring during shipment which might causeloss or damage. According to the present invention, a carton is formed from a single blank which is provided with receiving portions for snugly and securely retaining a plurality of articles packaged in a single carton so that they will be securely retained in position and will not come in contact with each other during shipment thereby preventing damage or explosion of cartridges or breakage of fragile articles which may be packaged in the carton.

Further details of the construction will be apparent from .the following specification and drawings wherein:

Figure l is a plan View of the blank from which up and sealed carton containing the articles to be packaged.

Referring to the drawings, Figure 1 illustrates a single blank made of any suitable sheet material, such as cardboard and the like, suitably cut and scored to provide a 4rear panel 20, a

front panel 3l, a bottom panel 22, and a cover 2l. Retaining panel 21 is hingedly connected to rear panel 20 along score line 4 I. Retaining panel 21 is provided with suitably spaced locking tongues 8 and 9 and opposing the base of these 'locking tongues cut score lines 6 and 1 are provided coinciding with score line 4I in order to render the base portions of the locking tongues 8 and 9 more flexible for easy insertion of the locking tongues in receiving slits. The cover 2| is hingedly connected to rear panel 20 along score line I. 'I'he cover, .if desired, may be provided with any suitable end flaps or locking tongues v for locking same to the body of the carton, However, in this construction no such means are provided as the cover 2| ismerely sealed by means of an adhesive tape 50 as shown in Figure 55 v score line I5.

5, after the contents are placed in the set-up carton.

The bottom panel 22 is hingedly connected to rear wall 20 along score line 2. Ihe bottom panel is provided with end ilaps 28 and 29 which are hingedly connected to bottom panel 22 along score lilies I2 and I3, respectively. The end aps 28 and 29 are also separated from the adjacent panels 30 and 21 along cut and score lines II and Ill, respectively. A front auxiliary panel 23 is hingedly connected to the lower edge of the bottom panel 22 along score line 3. An article-retaining panel 24 is hingedly connected to the panel 23 along score line 4. The panel 24 may be provided with a series of circular cut-out openings 26, for example, which are adapted to snugly receive cartridges, or cut out in any desired contour to conform and snugly receive any other articles-desired to be packaged in the carton. It is to be understood that any other suitable cutout portions may be provided in panel 24 depending upon the article or articles which are to be packaged in the carton. Panel 24 may be retained in a plane parallel to the bottom panel, but

if desired may be retained in any suitable position, depending upon the positioning of sustaining panel 25.

Hingedly ,attached to panel 24 is a sustaining panel 25 adapted to be adhesively attached to the rear wall 2|l or to be engaged therewith in any suitable manner. If desired, panel 25 may be made of sutil-cient length so that it will extend to the bottom panel 22 when the carton is set up, and thereby provide suillcient support for the article-receiving panel 24 without necessarily bei ing glued to the rear wall 20.

Side wall 30 is hingedly connected to the rear wall 20 along score line 40. 'The front wall 3i is hingedly connected to the side panel 30 along The second side wall panel 32 is hingedly connected to the front panel 3l along score line I6. The side panel 32 is' provided with suitable slits I1 and I8 which as shown in Figure 1 are T-shaped in order to receive the locking tongues 8 and 9 therein. The bottom of panel l2 is preferably cut along a beveled line I 9 as shown in Figure 1 in order to avoid any frictional engagement at this point when the carton is set up.

ously described, panel 22 and theadjacent hingedly connected panels 23, 24 and 25 which form an extension hingedly connected to the bottom panel, are foldedl upon .the remainder of the blank along score lines 2, 4, and 5 in the rela- In forming a carton from the blank as prevition shown in Figure 2, and the sustaining panel 25 is adhesively attached by glue or any other suitable means to the rear panel 20. Front panel 3| and the attached panel/32 are then folded over upon the body of the carton along score line I5 so as to assume the position indicated in Figures 2 and 3. 'Ihe cartons are shipped in this condition to the user.

In setting up the carton, the bottom panel 22 is folded at right angles to the rear panel 20 which automatically brings the front auxiliary panel 23 and panel 24 at right angles to each other into the position as shown in Figure 4. End aps 28 vand 29 are then folded at right angles to the bottom panel 22. The articles to be packaged are then positioned within the cutout portions 26 and the front panel 3| is then brought around into face to face contact with the front auxiliary panel 23 by hinging panel 3| f on score line l| 5. Side-panel 32 is then folded over on scorer line I6 to overlap ilap 29 and is 'retained in locked position by inserting the tongue portions 8 and 9 within slits' I1 and I8.l 'Ihe final package then has the appearance as shown in Figure 5. In order to retain the cover 2| into position it is adhesively secured by means of a piece lof tape 5|l`as shown inFigure 5.

It will be apparent from the foregoing descrip- `tion that the carton produced accordingto the present invention is of extremely simple construction and very easily and conveniently set' up from flat condition. A minimum of carton `stock is necessary in forming this carton and contents are instantly madev available and can,

be removed from the article-retaining panel.

It is to be understood that any changes and modications may be made in the carton construction herein disclosed, and it is intended to include such modifications within the scope of the appended claims.

I claim:

1. -A collapsible carton formed from a single blank comprising a rear panel, a side panel hingedly connected to one longitudinal side edge of said rear panel, a front panel hingedly connected to said side panel, a second side panel hingedly connected to said front panel, a retaining panel hingedly connected to the second longitudinal side edgev of said rear panel adapted to be engaged with said second side panel, a cover hingedly connected to the upper edge of said rear panel, a bottom panel hingedly connected to the lower edge of said rear panel, end aps hingedly connected to said bottom `panel extending in 'operative position as a strut across the entire integrally hinged along suitably spaced fold lines.

2. A collapsible carton formed from a single v blank comprising a rear paneL, a side panel hingedly connected to one side edge of said rear panel, a front panel hingedly connected to said side panel, a second side panel hingedly connected to said front panel, said second side panel being provided with spaced slits for receiving locking tongues, a retaining panel hingedly connected to the second side edge of `said rear panel, said retaining vpanel being provided with spaced locking tongues for insertion in the said spaced slits in the said second lside panel, a cover hingedly connected to the upper edge of said rear panel, a. bottom panel hingedly connected to the lower edge of said rear panel, end aps hingedly connected to said bottom panel extending in operative position as a strut across the entire Width of the carton in contact with the said front and rear panels, and an article retaining exteny sion hingedly connected to the bottom panel consisting of in succession a front auxiliary panel adapted to engage the inner face of the front panel, an article-retaining panel extending from the front to rear panel having the same dimensions as the bottom panel, and a sustaining panel adhered to the rear panel, all said panels being integrally hinged along suitably spaced fold lines.

OSCAR EGGEBRECHT. 

